Water-jacketed bed.



1. HfHE SS.

WATER JACKETED BED,

APPLICATION FILED MAY 3, I915.

Patented Mar. 21, 1916.

2 SHEETSSHEET l. W 2.

177M911 or Julius J. H. HESS.

WATER JACKETED BED,

APPLICATION FILED MAY 3. 19m

1,176,555. Patented Mar. 21, 1916 2 SHEETS-SHEET 2.

JULIUS H. HESS, OF CHICAGO, ILLINOIS.

WATER-JACKETED BED.

Specification of Letters Patent.

Patented Mar. 21, 1916.

Application filed May 3, 1915. Serial No. 25,661.

To all whom it may concern:

Be it known that I, J ULIUs HESS, a citizen of the United States, residing at Chlcago, Cook county, Illinois, have invented certain new and useful Improvements in Water-Jacketed Beds, of which the following is a specification.

The present invention has reference to certain improvements in water jacketed beds which are intended particularly for infants of tender age and delicate health. The device to which the invention relates is so constructed as to maintain a very uniform temperature within the bed or cradle, and of the desired degree of heat. At the same time the device is so constructed as to very efiiciently protect the infant from air currents while at the same time permitting a free circulation of fresh air to the infant.

Other objects of the invention are to provide means for accurately regulating or ad-- justing the temperature of the bed, and for ascertaining exactly the temperature at any given time. Also to so construct the bed that its various parts can be readily set together or taken apart as desired so that the entire device may be kept in a very sanitary and healthy condition and also to facilitate the making of repairs or replacements.

Other objects and uses of the device will appear from a detailed description of the same which consists in the features of construction and combinations of parts hereinafter described and claimed.

Referring to the drawings: Figure 1 shows a side elevation of the completed device, the central portions of the table legs being broken away so as to shorten up the figure; Fig. 2 shows a plan view corresponding to Fig. 1; and Fig. 3 shows across section taken on the line 33 of Fig. 1 looking in the direction of the arrows.

Referring to the several figures, the device comprises the bed or cradle portion 1 which sets onto the stand or pedestal 5. This stand or pedestal comprises a table portion 6 having its edge flanged or upturned as at 7, and having in its central portion a depressed pocket or the like 8. This table portion is carried by the legs 9 which may be reinforced in the usual manner by cross pieces 10 or the like.

The cradle portion is shown as taking the form of a sheet metal tub or container 11 having its outer surface lined or coated with a layer of heat insulating material, such as cork or the like 12. This tub, with its heat insulating layer, sets. down onto the table and inside of the flange thereof, but in order to insulate the bottom of the tub against heat radiation a layer of asbestos or the like 13 is laid onto the table below the bottom of the tub. This asbestos, however, is cut away at the point above the pocket 8, so that at that point the sheet metal bottom of the tub is unprotected by heat insulating material.

Inside of the tub but spaced from the walls and bottom of the same is the Water tight cradle 14. This is spaced a suitable distance to provide the water jacket 15 around the sides and bottom of the cradle. A convenient form of construction is that illustrated in which the cradle has its upper edge 16 flanged outward and laid down onto the upper edge of the tub. In order to give the construction a finish along the upper edge an angle plate 17 may be run around the entire upper portion of the device.

In order to give an indication as to the elevation of the water within the jacket the Water gage 18 may be provided. The de vice may be filled with water from time to time by removing the plug 19 which leads into the upper portion of the jacket, and the jacket may be drained by opening the cook 20 so as to run the water off through the spout 21.

A crib 22 sets down inside of the cradle. This crib is conveniently made up rom wire mesh, its bottom portion being sustained above the bottom of the cradle by the bar 23 so as to leave the clear space 24 between the bottom of the crib and cradle. The infants bed clothes and wrappings are placed inside of the wire mesh crib. By the provision of the air space 24 underneath the crib proper ventilation all around the crib is insured; the sanitary condition of the device is thus materially improved.

In case a leak should develop in the crib at any time water might find its way into the same and endanger the infants health. As a precaution against this contingency I have shown the drain pipe 25 leading directly from the interior of the cradle through the bottom of the water jacket so that any such leakage would immediately drain off and not wet the bed clothes within the crib.

For the purpose of heating the water in the jacket I have shown the electric pad or heater 26 mounted within the pocket 8, and forced upward by the thumb screws 27. By the use of the thumb screws the pad or heater can be brought into firm contact with the metal bottom of the cradle thereby insuring a proper transmission of heat into the same at all times. This will not only insure economical transmission of heat to the water jacket, but will also insure a more uniform and certain heating of the water acket, and will also prevent overheating of the electric pad or heater. The rheostat 28 serves to control the current in the heater, and the heater may be conveniently connected up to any back section 30 may be lifted off thereby giving direct access to the interior.

A thermometer 33 serves to indicate the temperature of the air inside of the cradle, and a thermometer 34 indicates the temperature of the water in the jacket. This latter indication is desirable as showing what change of temperature of the air may be expected after a given change of rheostat position.

While I have herein shown and described only a single embodiment of my invention, still it will be understood that many changes of construction might be made without in any manner departing from the spirit of the invention.

I claim:

1. In a device of the class described the combination of a water jacketed cradle, a crib removably seated within the same, heat insulating material surrounding the sides and bottom of the water jacket, there being a central perforation in the heat insulating material at the bottom of the jacket, a heater adapted to seat through said perforation, means for forcing the heater against the surface of the water jacket to insure contact between the heater and the water jacket, means for controlling the temperature of the heater, front and back cover sections for covering over the cradle, said sections being suitably formed to provide a ventilating space between them, and means for ascertaining the temperature existing within the cradle, substantially as described. 7

2. In a device of the class described the combination of a water jacketed cradle, a crib removably seated Within the same, heat insulating material surrounding the sides and bottom of the Water'jacket, there being a central perforation in the heat insulating material at the bottom of the jacket, a heater extended through said perforation and into direct contact with the bottom of the Water jacket, means for forcing the heater into firm contact with the bottom of the water jacket under adjustable pressure, and means for covering over the top of the cradle, substantially as described.

3. In a device of the class described the combination of a water jacketed cradle, a crib removably seated within the same, heat insulating material surrounding the sides and bottom of the water jacket, there being a central perforation in the heat insulating material at the bottom of the water jacket, a heater extended through said perforation and into direct contact with the bottom of the Water jacket, and a suitable cover seated 95 over the top of the cradle, substantially as described.

4. In a device of the class described the combination of a cradle, means for maintaininga desired temperature within the same, 100 a wire mesh crib adapted to seat within the cradle, means for spacing the lower portion ofthe crib above the floor of the cradle, a front cover section of spherical formation covering over the front portion of the cradle, 5 and a relatively flat back cover section covering over the back portion of the cradle and having its front edge extending as far forward as the back edge of the front cover section and leaving a ventilating opening be- 1 tween both cover sections at such point, whereby air entering through said opening is enabled to circulate around and beneath the crib Within the cradle, substantially as described.

5. Ina device of the class described the combination with a suitable receptacle, of a crib removably seated within the same, means for heating said receptacle, a spherical cover section mounted over one end of 120 the receptacle, and a removable relatively flat cover section mounted over the remaining portion of the receptacle, said last mentioned cover section extending beneath the adjacent edge of the first mentioned cover 120 section, providing beneath said adjacent edge a ventilating opening, substantially as described.

6. In a device of the class described the combination with a suitable receptacle, and

meansfor maintaining a desired temperaportion of the receptacle being open to the ture within the same, of heat insulating maatmosphere, substantially as described.

terial surrounding the bottom and walls of JULIUS H. HESS. said receptacle, and a relatively fiat re- Witnesses: 5 movable cover section extending over a por- THOMAS A. BANNING, J r.,

tion of the said receptacle, the remaining WM. P. BOND. 

